Home / 579,366,861.40-869,050,292.10-515,877,376.60

Finding the Fourth Proportional to 579,366,861.40, 869,050,292.10 and 515,877,376.60

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Solution

The fourth proportional to 579,366,861.40, 869,050,292.10 and 515,877,376.60 is: 773,816,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,366,861.40 : 869,050,292.10 = 515,877,376.60 : x
  2. Step 2: Convert to fraction form
    579,366,861.40/869,050,292.10 = 515,877,376.60/x
  3. Step 3: Cross multiply
    579,366,861.40x = 869,050,292.10 × 515,877,376.60
  4. Step 4: Simplify right side
    579,366,861.40x = 448,323,384,822,011,712
  5. Step 5: Solve for x
    x = 448,323,384,822,011,712/579,366,861.40
  6. Step 6: Final answer
    x = 773,816,064.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.